Washburn Tunnel
TOTAL IMMERSED LENGTH: 457 m
DEPTH AT BOTTOM OF STRUCTURE: 24 m
HEIGHT: 9.75 I.D.
WIDTH: 10.97
FABRICATION METHOD: At shipyard in Pascagoula, Miss. end launched and towed 640 km to Pasadena, Texas. Special launching reinforcing was removed and ballast concrete was placed at an outfitting dock before the tow to Texas.
DEPTH AT BOTTOM OF STRUCTURE: 24 m
HEIGHT: 9.75 I.D.
WIDTH: 10.97
FABRICATION METHOD: At shipyard in Pascagoula, Miss. end launched and towed 640 km to Pasadena, Texas. Special launching reinforcing was removed and ballast concrete was placed at an outfitting dock before the tow to Texas.
between Houston and Galveston,
United States
Local associations, The Harbour of Houston
Merritt, Chapman and Scott, New York
Palmer & Baker, Mobile, Alabama
114.37m
457m
24m
Project construction
1950-03-31
4
One tube; two lanes, one each way
9.75 I.D.
10.97
At shipyard in Pascagoula, Miss. end launched and towed 640 km to Pasadena, Texas. Special launching reinforcing was removed and ballast concrete was placed at an outfitting dock before the tow to Texas.
Tremie concrete.
Continuous steel shell.
Sand fill